What is the minimum amount you need to invest in the FTSE 100?

The minimum amount needed to invest in the FTSE 100 can vary depending on the brokerage you choose and the specific investment vehicle. Generally, you can start investing in an ETF or mutual fund tracking the FTSE 100 with as little as £100 to £1,000, depending on the fund's minimum investment requirements. Directly purchasing shares of FTSE 100 companies will require enough capital to buy at least one share of each company, which can vary significantly in price. Always check specific brokerage fees and minimum investment amounts before proceeding.